Patent attributes
The present invention discloses a clutch mechanism to adjust eccentricity in a power tool. The clutch mechanism comprises an outer race mounted radially on an annular main body which is mounted on an eccentric shaft. At least one first connecting member is disposed between the outer race and the annular main body. At least one second connecting member is disposed between the annular main body and the eccentric shaft. The first connecting member makes the outer race and the annular main body rotate relative to each other at one way. The second connecting member makes the annular main body and the eccentric shaft rotate relative to each other at one way. The annular main body has an axial projection formed thereon to connect with an eccentric mechanism in the power tool. With this type of clutch mechanism, the adjusted eccentricity will not change during working and torque can be transferred stably.